NPPES file of Aug 9, 2026

Clarissa Ann Ramstead, ANP

Adult Health Nurse Practitioner · San Francisco, CA

Clarissa Ann Ramstead, ANP is an adult health nurse practitioner with a practice address in San Francisco, California, and NPI 1992836548, issued on Mar 7, 2007. Check the license (California 464445, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1992836548
Name
Clarissa Ann Ramstead
Credential
ANP
Primary taxonomy
Adult Health Nurse Practitioner 363LA2200X
License number
464445 CA
Self-reported in NPPES; status is on the state search
Practice location
995 Potrero Ave, San Francisco, CA 94110
Phone
(415) 206-2449
Enumerated
Mar 7, 2007
Record last updated
Jan 12, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(415) 502-9566
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 995 Potrero Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Danielle Alkov, M.D.Family Medicine Physician1174960892
  2. Gloria AlonzoContractor1417378316
  3. Martha Baer, RNRegistered Nurse1750226262
  4. Suzanne Barakat, M.D.Student in an Organized Health Care Education/Training Program1851703946
  5. George Beatty, MDInternal Medicine Physician1649387457
  6. Ignacio Becerra-Licha, M.D.Student in an Organized Health Care Education/Training Program1215374418

Verify Clarissa Ann Ramstead in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 464445
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

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81% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024

237 Medicare Part D claims for 20 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D.

  1. Clarissa Ramstead237
  2. Specialty average1,280

Most prescribed

  1. Atorvastatin Calcium17 claims
  2. Furosemide15 claims
  3. Lisinopril14 claims
  4. Gabapentin12 claims
  5. Amlodipine Besylate11 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $482.88

17 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, Inc. The 12,291 providers of this specialty with any payment received $946.40 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Clarissa Ramstead$482.88
  2. Specialty average$946.40

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Clarissa Ann Ramstead among 1,405 adult health nurse practitioner records in California

Clarissa Ann Ramstead, ANP is one of 1,405 adult health nurse practitioner records with a practice address in California. 56% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 18% of them.

  • NPI issued2007 · 18% of these records are older, 70% newer
  • In a Medicare fileYes · 56% of these records are
  • In the CMS Doctors and Clinicians fileNo · 31% of these records are
  • Record last updated2012 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Adult Health Nurse Practitioner providers in California

There are 1,405 adult health nurse practitioner records in California.

The 8 adult health nurse practitioner records with the nearest ZIP codes

  1. Katherine Bell, NPSan Francisco, CA 941101861502007
  2. Sari Bushman, ADULT NPSan Francisco, CA 941101508005992
  3. Susan Flores, N.P.San Francisco, CA 941101649305897
  4. Hillary Jones, NPSan Francisco, CA 941101619004603
  5. Tina King, NPSan Francisco, CA 941101295936441
  6. Katherine Kitagawa-Mah, R.N., N.P., CNSSan Francisco, CA 941101750573705
  7. Charlotte Kuo, NPSan Francisco, CA 941101598985467
  8. Jun Ting Liu, NP, MSNSan Francisco, CA 941101366566184

Common questions

What is Clarissa Ann Ramstead, ANP's NPI number?

Clarissa Ann Ramstead, ANP's National Provider Identifier (NPI) is 1992836548, issued on Mar 7, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Clarissa Ann Ramstead, ANP located?

The NPPES record lists a practice address at 995 Potrero Ave, San Francisco, CA, 94110. Phone: (415) 206-2449. Providers update this record themselves, so call before visiting.

How can I verify Clarissa Ann Ramstead, ANP's license?

NPPES lists California license number 464445, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Clarissa Ann Ramstead, ANP prescribe under Medicare Part D?

In 2024, Clarissa Ann Ramstead, ANP had 237 Medicare Part D claims for 20 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.